#include<bits/stdc++.h>
using namespace std;
long long n,a[100010],l,r,ans=1;
int main()
{
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    cin>>n;
    for(int i=1;i<=n;i++)cin>>a[i];
    sort(a+1,a+n+1);
    l=1,r=2;
    while(r<=n)
    {
        if(a[l]<a[r]){l++;r++;}
        else {r++;ans++;}
    }
    cout<<ans;
    return 0;
}
